Lines Matching +full:dload +full:- +full:mode
1 // SPDX-License-Identifier: GPL-2.0-only
11 #include <linux/dma-mapping.h>
21 #include <linux/reset-controller.h>
22 #include <linux/arm-smccc.h>
82 ret = clk_prepare_enable(__scm->core_clk); in qcom_scm_clk_enable()
86 ret = clk_prepare_enable(__scm->iface_clk); in qcom_scm_clk_enable()
90 ret = clk_prepare_enable(__scm->bus_clk); in qcom_scm_clk_enable()
97 clk_disable_unprepare(__scm->iface_clk); in qcom_scm_clk_enable()
99 clk_disable_unprepare(__scm->core_clk); in qcom_scm_clk_enable()
106 clk_disable_unprepare(__scm->core_clk); in qcom_scm_clk_disable()
107 clk_disable_unprepare(__scm->iface_clk); in qcom_scm_clk_disable()
108 clk_disable_unprepare(__scm->bus_clk); in qcom_scm_clk_disable()
115 if (!__scm->path) in qcom_scm_bw_enable()
118 if (IS_ERR(__scm->path)) in qcom_scm_bw_enable()
119 return -EINVAL; in qcom_scm_bw_enable()
121 mutex_lock(&__scm->scm_bw_lock); in qcom_scm_bw_enable()
122 if (!__scm->scm_vote_count) { in qcom_scm_bw_enable()
123 ret = icc_set_bw(__scm->path, 0, UINT_MAX); in qcom_scm_bw_enable()
125 dev_err(__scm->dev, "failed to set bandwidth request\n"); in qcom_scm_bw_enable()
129 __scm->scm_vote_count++; in qcom_scm_bw_enable()
131 mutex_unlock(&__scm->scm_bw_lock); in qcom_scm_bw_enable()
138 if (IS_ERR_OR_NULL(__scm->path)) in qcom_scm_bw_disable()
141 mutex_lock(&__scm->scm_bw_lock); in qcom_scm_bw_disable()
142 if (__scm->scm_vote_count-- == 1) in qcom_scm_bw_disable()
143 icc_set_bw(__scm->path, 0, 0); in qcom_scm_bw_disable()
144 mutex_unlock(&__scm->scm_bw_lock); in qcom_scm_bw_disable()
171 * Per the "SMC calling convention specification", the 64-bit calling in __get_convention()
172 * convention can only be used when the client is 64-bit, otherwise in __get_convention()
177 * Device isn't required as there is only one argument - no device in __get_convention()
192 if (of_device_is_compatible(__scm ? __scm->dev->of_node : NULL, "qcom,scm-sc7180")) { in __get_convention()
218 * qcom_scm_call() - Invoke a syscall in the secure world
224 * This should *only* be called in pre-emptible context.
238 return -EINVAL; in qcom_scm_call()
243 * qcom_scm_call_atomic() - atomic variation of qcom_scm_call()
263 return -EINVAL; in qcom_scm_call_atomic()
311 return -EINVAL; in qcom_scm_set_boot_addr()
318 return qcom_scm_call_atomic(__scm ? __scm->dev : NULL, &desc, NULL); in qcom_scm_set_boot_addr()
338 return -EOPNOTSUPP; in qcom_scm_set_boot_addr_mc()
340 return qcom_scm_call(__scm->dev, &desc, NULL); in qcom_scm_set_boot_addr_mc()
344 * qcom_scm_set_warm_boot_addr() - Set the warm boot address for all cpus
360 * qcom_scm_set_cold_boot_addr() - Set the cold boot address for all cpus
373 * qcom_scm_cpu_power_down() - Power down the cpu
390 qcom_scm_call_atomic(__scm ? __scm->dev : NULL, &desc, NULL); in qcom_scm_cpu_power_down()
407 ret = qcom_scm_call(__scm->dev, &desc, &res); in qcom_scm_set_remote_state()
425 return qcom_scm_call_atomic(__scm->dev, &desc, NULL); in __qcom_scm_set_dload_mode()
433 avail = __qcom_scm_is_call_available(__scm->dev, in qcom_scm_set_download_mode()
437 ret = __qcom_scm_set_dload_mode(__scm->dev, enable); in qcom_scm_set_download_mode()
438 } else if (__scm->dload_mode_addr) { in qcom_scm_set_download_mode()
439 ret = qcom_scm_io_writel(__scm->dload_mode_addr, in qcom_scm_set_download_mode()
442 dev_err(__scm->dev, in qcom_scm_set_download_mode()
443 "No available mechanism for setting download mode\n"); in qcom_scm_set_download_mode()
447 dev_err(__scm->dev, "failed to set download mode: %d\n", ret); in qcom_scm_set_download_mode()
451 * qcom_scm_pas_init_image() - Initialize peripheral authentication service
485 * non-cachable to avoid XPU violations. in qcom_scm_pas_init_image()
487 mdata_buf = dma_alloc_coherent(__scm->dev, size, &mdata_phys, in qcom_scm_pas_init_image()
490 dev_err(__scm->dev, "Allocation of metadata buffer failed.\n"); in qcom_scm_pas_init_image()
491 return -ENOMEM; in qcom_scm_pas_init_image()
505 ret = qcom_scm_call(__scm->dev, &desc, &res); in qcom_scm_pas_init_image()
513 dma_free_coherent(__scm->dev, size, mdata_buf, mdata_phys); in qcom_scm_pas_init_image()
515 ctx->ptr = mdata_buf; in qcom_scm_pas_init_image()
516 ctx->phys = mdata_phys; in qcom_scm_pas_init_image()
517 ctx->size = size; in qcom_scm_pas_init_image()
525 * qcom_scm_pas_metadata_release() - release metadata context
530 if (!ctx->ptr) in qcom_scm_pas_metadata_release()
533 dma_free_coherent(__scm->dev, ctx->size, ctx->ptr, ctx->phys); in qcom_scm_pas_metadata_release()
535 ctx->ptr = NULL; in qcom_scm_pas_metadata_release()
536 ctx->phys = 0; in qcom_scm_pas_metadata_release()
537 ctx->size = 0; in qcom_scm_pas_metadata_release()
542 * qcom_scm_pas_mem_setup() - Prepare the memory related to a given peripheral
572 ret = qcom_scm_call(__scm->dev, &desc, &res); in qcom_scm_pas_mem_setup()
583 * qcom_scm_pas_auth_and_reset() - Authenticate the given peripheral firmware
609 ret = qcom_scm_call(__scm->dev, &desc, &res); in qcom_scm_pas_auth_and_reset()
620 * qcom_scm_pas_shutdown() - Shut down the remote processor
645 ret = qcom_scm_call(__scm->dev, &desc, &res); in qcom_scm_pas_shutdown()
656 * qcom_scm_pas_supported() - Check if the peripheral authentication service is
674 if (!__qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_PIL, in qcom_scm_pas_supported()
678 ret = qcom_scm_call(__scm->dev, &desc, &res); in qcom_scm_pas_supported()
697 ret = qcom_scm_call(__scm->dev, &desc, &res); in __qcom_scm_pas_mss_reset()
706 return -EINVAL; in qcom_scm_pas_reset_assert()
708 return __qcom_scm_pas_mss_reset(__scm->dev, 1); in qcom_scm_pas_reset_assert()
715 return -EINVAL; in qcom_scm_pas_reset_deassert()
717 return __qcom_scm_pas_mss_reset(__scm->dev, 0); in qcom_scm_pas_reset_deassert()
738 ret = qcom_scm_call_atomic(__scm->dev, &desc, &res); in qcom_scm_io_readl()
757 return qcom_scm_call_atomic(__scm->dev, &desc, NULL); in qcom_scm_io_writel()
762 * qcom_scm_restore_sec_cfg_available() - Check if secure environment
765 * Return true if restore-cfg interface is supported, false if not.
769 return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_MP, in qcom_scm_restore_sec_cfg_available()
787 ret = qcom_scm_call(__scm->dev, &desc, &res); in qcom_scm_restore_sec_cfg()
805 ret = qcom_scm_call(__scm->dev, &desc, &res); in qcom_scm_iommu_secure_ptbl_size()
828 ret = qcom_scm_call(__scm->dev, &desc, NULL); in qcom_scm_iommu_secure_ptbl_init()
831 if (ret == -EPERM) in qcom_scm_iommu_secure_ptbl_init()
849 return qcom_scm_call(__scm->dev, &desc, NULL); in qcom_scm_iommu_set_cp_pool_size()
871 ret = qcom_scm_call(__scm->dev, &desc, &res); in qcom_scm_mem_protect_video_var()
905 * qcom_scm_assign_mem() - Make a secure call to reassign memory ownership
942 ptr = dma_alloc_coherent(__scm->dev, ptr_sz, &ptr_phys, GFP_KERNEL); in qcom_scm_assign_mem()
944 return -ENOMEM; in qcom_scm_assign_mem()
957 mem_to_map->mem_addr = cpu_to_le64(mem_addr); in qcom_scm_assign_mem()
958 mem_to_map->mem_size = cpu_to_le64(mem_sz); in qcom_scm_assign_mem()
965 destvm->vmid = cpu_to_le32(newvm->vmid); in qcom_scm_assign_mem()
966 destvm->perm = cpu_to_le32(newvm->perm); in qcom_scm_assign_mem()
967 destvm->ctx = 0; in qcom_scm_assign_mem()
968 destvm->ctx_size = 0; in qcom_scm_assign_mem()
969 next_vm |= BIT(newvm->vmid); in qcom_scm_assign_mem()
972 ret = __qcom_scm_assign_mem(__scm->dev, mem_to_map_phys, mem_to_map_sz, in qcom_scm_assign_mem()
974 dma_free_coherent(__scm->dev, ptr_sz, ptr, ptr_phys); in qcom_scm_assign_mem()
976 dev_err(__scm->dev, in qcom_scm_assign_mem()
978 return -EINVAL; in qcom_scm_assign_mem()
987 * qcom_scm_ocmem_lock_available() - is OCMEM lock/unlock interface available
991 return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_OCMEM, in qcom_scm_ocmem_lock_available()
997 * qcom_scm_ocmem_lock() - call OCMEM lock interface to assign an OCMEM
1003 * @mode: access mode (WIDE/NARROW)
1006 u32 mode) in qcom_scm_ocmem_lock() argument
1014 .args[3] = mode, in qcom_scm_ocmem_lock()
1018 return qcom_scm_call(__scm->dev, &desc, NULL); in qcom_scm_ocmem_lock()
1023 * qcom_scm_ocmem_unlock() - call OCMEM unlock interface to release an OCMEM
1041 return qcom_scm_call(__scm->dev, &desc, NULL); in qcom_scm_ocmem_unlock()
1046 * qcom_scm_ice_available() - Is the ICE key programming interface available?
1053 return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_ES, in qcom_scm_ice_available()
1055 __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_ES, in qcom_scm_ice_available()
1061 * qcom_scm_ice_invalidate_key() - Invalidate an inline encryption key
1070 * Return: 0 on success; -errno on failure.
1082 return qcom_scm_call(__scm->dev, &desc, NULL); in qcom_scm_ice_invalidate_key()
1087 * qcom_scm_ice_set_key() - Set an inline encryption key
1093 * individual plaintext and ciphertext. Given in 512-byte
1105 * Return: 0 on success; -errno on failure.
1133 * keys is normally rare and thus not performance-critical. in qcom_scm_ice_set_key()
1136 keybuf = dma_alloc_coherent(__scm->dev, key_size, &key_phys, in qcom_scm_ice_set_key()
1139 return -ENOMEM; in qcom_scm_ice_set_key()
1143 ret = qcom_scm_call(__scm->dev, &desc, NULL); in qcom_scm_ice_set_key()
1147 dma_free_coherent(__scm->dev, key_size, keybuf, key_phys); in qcom_scm_ice_set_key()
1153 * qcom_scm_hdcp_available() - Check if secure environment supports HDCP.
1165 avail = __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_HDCP, in qcom_scm_hdcp_available()
1175 * qcom_scm_hdcp_req() - Send HDCP request.
1206 return -ERANGE; in qcom_scm_hdcp_req()
1212 ret = qcom_scm_call(__scm->dev, &desc, &res); in qcom_scm_hdcp_req()
1229 .args[2] = pt_fmt, /* 0: LPAE AArch32 - 1: AArch64 */ in qcom_scm_iommu_set_pt_format()
1233 return qcom_scm_call(__scm->dev, &desc, NULL); in qcom_scm_iommu_set_pt_format()
1249 return qcom_scm_call_atomic(__scm->dev, &desc, NULL); in qcom_scm_qsmmu500_wait_safe_toggle()
1255 return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_LMH, QCOM_SCM_LMH_LIMIT_DCVSH); in qcom_scm_lmh_dcvsh_available()
1269 return qcom_scm_call(__scm->dev, &desc, NULL); in qcom_scm_lmh_profile_change()
1292 payload_buf = dma_alloc_coherent(__scm->dev, payload_size, &payload_phys, GFP_KERNEL); in qcom_scm_lmh_dcvsh()
1294 return -ENOMEM; in qcom_scm_lmh_dcvsh()
1304 ret = qcom_scm_call(__scm->dev, &desc, NULL); in qcom_scm_lmh_dcvsh()
1306 dma_free_coherent(__scm->dev, payload_size, payload_buf, payload_phys); in qcom_scm_lmh_dcvsh()
1314 struct device_node *np = dev->of_node; in qcom_scm_find_dload_address()
1319 tcsr = of_parse_phandle(np, "qcom,dload-mode", 0); in qcom_scm_find_dload_address()
1328 ret = of_property_read_u32_index(np, "qcom,dload-mode", 1, &offset); in qcom_scm_find_dload_address()
1338 * qcom_scm_is_available() - Checks if SCM is available
1354 dev_err(__scm->dev, "Firmware unexpectedly passed non-zero wq_ctx\n"); in qcom_scm_assert_valid_wq_ctx()
1355 return -EINVAL; in qcom_scm_assert_valid_wq_ctx()
1369 wait_for_completion(&__scm->waitq_comp); in qcom_scm_wait_for_wq_completion()
1382 complete(&__scm->waitq_comp); in qcom_scm_waitq_wakeup()
1396 dev_err(scm->dev, "GET_WQ_CTX SMC call failed: %d\n", ret); in qcom_scm_irq_handler()
1402 dev_err(scm->dev, "Invalid flags found for wq_ctx: %u\n", flags); in qcom_scm_irq_handler()
1420 scm = devm_kzalloc(&pdev->dev, sizeof(*scm), GFP_KERNEL); in qcom_scm_probe()
1422 return -ENOMEM; in qcom_scm_probe()
1424 scm->dev = &pdev->dev; in qcom_scm_probe()
1425 ret = qcom_scm_find_dload_address(&pdev->dev, &scm->dload_mode_addr); in qcom_scm_probe()
1429 init_completion(&scm->waitq_comp); in qcom_scm_probe()
1430 mutex_init(&scm->scm_bw_lock); in qcom_scm_probe()
1432 scm->path = devm_of_icc_get(&pdev->dev, NULL); in qcom_scm_probe()
1433 if (IS_ERR(scm->path)) in qcom_scm_probe()
1434 return dev_err_probe(&pdev->dev, PTR_ERR(scm->path), in qcom_scm_probe()
1437 scm->core_clk = devm_clk_get_optional(&pdev->dev, "core"); in qcom_scm_probe()
1438 if (IS_ERR(scm->core_clk)) in qcom_scm_probe()
1439 return PTR_ERR(scm->core_clk); in qcom_scm_probe()
1441 scm->iface_clk = devm_clk_get_optional(&pdev->dev, "iface"); in qcom_scm_probe()
1442 if (IS_ERR(scm->iface_clk)) in qcom_scm_probe()
1443 return PTR_ERR(scm->iface_clk); in qcom_scm_probe()
1445 scm->bus_clk = devm_clk_get_optional(&pdev->dev, "bus"); in qcom_scm_probe()
1446 if (IS_ERR(scm->bus_clk)) in qcom_scm_probe()
1447 return PTR_ERR(scm->bus_clk); in qcom_scm_probe()
1449 scm->reset.ops = &qcom_scm_pas_reset_ops; in qcom_scm_probe()
1450 scm->reset.nr_resets = 1; in qcom_scm_probe()
1451 scm->reset.of_node = pdev->dev.of_node; in qcom_scm_probe()
1452 ret = devm_reset_controller_register(&pdev->dev, &scm->reset); in qcom_scm_probe()
1457 ret = clk_set_rate(scm->core_clk, INT_MAX); in qcom_scm_probe()
1466 if (irq != -ENXIO) in qcom_scm_probe()
1469 ret = devm_request_threaded_irq(__scm->dev, irq, NULL, qcom_scm_irq_handler, in qcom_scm_probe()
1470 IRQF_ONESHOT, "qcom-scm", __scm); in qcom_scm_probe()
1472 return dev_err_probe(scm->dev, ret, "Failed to request qcom-scm irq\n"); in qcom_scm_probe()
1478 * If requested enable "download mode", from this point on warmboot in qcom_scm_probe()
1479 * will cause the boot stages to enter download mode, unless in qcom_scm_probe()
1490 /* Clean shutdown, disable download mode to allow normal restart */ in qcom_scm_shutdown()
1498 { .compatible = "qcom,scm-apq8064" },
1499 { .compatible = "qcom,scm-apq8084" },
1500 { .compatible = "qcom,scm-ipq4019" },
1501 { .compatible = "qcom,scm-msm8953" },
1502 { .compatible = "qcom,scm-msm8974" },
1503 { .compatible = "qcom,scm-msm8996" },